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And, being a brand ambarassador for IWC, Adriana flashed one of the Swiss company's luxury timpeieces as she posed for pictures at the bash, company CEO Georges Kern and brand director Karoline Huber.

The mother-of-two is one of a number of stars - including Cate Blanchett, Emily Blunt, Christoph Waltz, Karolina Kurkova and Zhou Xun - featured in the recetly unveiled campaign for the company's watches.

Timeless chic: The stunning model wore one of the Swiss company's luxury timepieces to the event

Who's the boss: She posed with IWC CEO Georges Kern as she soaked up the party atmosphere

To celebrate the launch of the Portofino Midsize collection, revered photographer Peter Lindbergh created the exclusive photos, set in the stunning Italian harbour town of Portofino.

The photographic collection will be taken on a round-the-world exhibition entitled: Timeless Portofino, and its first stop was at the Zurich Film Festival.

Along with style and beauty, Adriana is also one of the highest earners in the modelling world, with Forbes recently tying her with Doutzen Kroes for second place on the supermodel list with both earning $8 million last year.

Social butterfly: The mother-of-two also shared the spotlight wutt fashion designer Hussein Bazaza

The list - which saw Gisele Bundchen land at the top for the eighth straight year with earnings of $47 million - took into account income from cosmetics, endorsements, advertising and fragrance deals.

In May, she announced that she and former NBA player Marko Jaric were splitting.

The couple eloped in Wyoming back in 2009 after three years of dating and are parents to Valentina, six, and Sienna, two.

Addressing her audience: Brunette beauty Adriana serves as a brand ambassador for IWC